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In the United States new 30-year normals are calculated every ten years. The most recent normals (using 1991-2020 data) are listed below, along with the previous set of normals (from 1981-2010), and the difference between the two normals packages. Click on the images to see larger versions.

Or, click here to see comparisons between the new normals and the previous (1981-2010) set of normals in graphical format for local cities (BWG, FFT, LEX, SDF, LOU).

 

TEMPERATURE

ANNUAL
1991-2020 Difference Between Old and New 1981-2010
Mean Maximum Minimum Mean Maximum Minimum Mean Maximum Minimum
1991-2020 normal annual mean temperature 1991-2020 normal annual maximum temperature 1991-2020 normal annual minimum temperature 1981-2010 normal annual average temperature difference 1981-2010 normal annual maximum temperature difference 1981-2010 normal annual minimum temperature deifference 1981-2010 Mean Temperature 1981-2010 normal maximum temperature 1981-2010 normal minimum temperature

 

SEASONAL
  1991-2020 Difference Between Old and New 1981-2010
  Mean Maximum Minimum Mean Maximum Minimum Mean Maximum Minimum
Spring 1991-2020 normal spring average temperature 1991-2020 normal spring maximum temperature 1991-2020 normal spring minimum temperature 1981-2010 normal spring average temperature difference 1981-2010 normal spring maximum temperature difference 1981-2010 normal spring minimum temperature difference 1981-2010 normal spring mean temperature 1981-2010 normal spring maximum temperature 1981-2010 normal spring minimum temperature
Summer 1991-2020 normal summer average temperature 1991-2020 normal summer maximum temperature 1991-2020 normal summer minimum temperature 1981-2010 normal summer average temperature difference 1981-2010 normal summer maximum temperature difference 1981-2010 normal summer minimum temperature difference 1981-2010 normal average summer temperature 1981-2010 normal maximum summer temperature 1981-2010 normal minimum temperature
Autumn 1991-2020 normal autumn average temperature 1991-2020 normal autumn maximum temperature 1991-2020 normal autumn minimum temperature 1981-2010 normal autumn average temperature difference 1981-2010 normal autumn maximum temperature difference 1981-2010 normal autumn minimum temperature difference 1981-2010 normal autumn average temperature 1981-2010 normal autumn high temperature 1981-2010 normal autumn minimum temperature
Winter 1991-2020 normal December average temperature 1991-2020 normal December maximum temperature 1991-2020 normal December minimum temperature 1981-2010 normal winter average temperature difference 1981-2010 normal winter maximum temperature difference 1981-2010 normal winter minimum temperature difference 1981-2010 normal average winter temperature 1981-2010 normal winter maximum temperature 1981-2010 normal minimum winter temperature

 

MONTHLY
  1991-2020 Difference Between Old and New 1981-2010
  Mean Maximum Minimum Mean Maximum Minimum Mean Maximum Minimum
January 1991-2020 normal January average temperature 1991-2020 normal January maximum temperature 1991-2020 normal January minimum temperature 1981-2010 normal January average temperature difference 1981-2010 normal January maximum temperature difference 1981-2010 normal January minimum temperature difference 1981-2010 normal average temperature January 1981-2010 normal maximum temperature January 1981-2010 normal minimum temperature January
February 1991-2020 normal February average temperature 1991-2020 normal February maximum temperature 1991-2020 normal February minimum temperature 1981-2010 normal February average temperature difference 1981-2010 normal February maximum temperature difference 1981-2010 normal February minimum temperature difference 1981-2010 normal average temperature February 1981-2010 normal maximum temperature February 1981-2010 normal minimum temperature February
March 1991-2020 normal March average temperature 1991-2020 normal March maximum temperature 1991-2020 normal March minimum temperature 1981-2010 normal March average temperature difference 1981-2010 normal March maximum temperature difference 1981-2010 normal March minimum temperature difference 1981-2010 normal average temperature March 1981-2010 normal maximum temperature March 1981-2010 normal minimum temperature March
April 1991-2020 normal April average temperature 1991-2020 normal April maximum temperature 1991-2020 normal April minimum temperature 1981-2010 normal April average temperature difference 1981-2010 normal April maximum temperature difference 1981-2010 normal April minimum temperature difference 1981-2010 normal average temperature April 1981-2010 normal maximum temperature April 1981-2010 normal minimum temperature April
May 1991-2020 normal May average temperature 1991-2020 normal May maximum temperature 1991-2020 normal May minimum temperature 1981-2010 normal May average temperature difference 1981-2010 normal May maximum temperature difference 1981-2010 normal May minimum temperature difference 1981-2010 normal average temperature May 1981-2010 normal maximum temperature May 1981-2010 normal minimum temperature May
June 1991-2020 normal June average temperature 1991-2020 normal June maximum temperature 1991-2020 normal June minimum temperature 1981-2010 normal June average temperature difference 1981-2010 normal June maximum temperature difference 1981-2010 normal June minimum temperature difference 1981-2010 normal average temperature June 1981-2010 normal maximum temperature June 1981-2010 normal minimum temperature June
July 1991-2020 normal July average temperature 1991-2020 normal July maximum temperature 1991-2020 normal July minimum temperature 1981-2010 normal July average temperature difference 1981-2010 normal July maximum temperature difference 1981-2010 normal July minimum temperature difference 1981-2010 normal average temperature July 1981-2010 normal maximum temperature July 181-2010 normal minimum temperature July
August 1991-2020 normal August average temperature 1991-2020 normal August maximum temperature 1991-2020 normal August minimum temperature 1981-2010 normal August average temperature difference 1981-2010 normal August maximum temperature difference 1981-2010 normal August minimum temperature 1981-2010 normal average temperature August 1981-2010 normal maximum temperature August 1981-2010 normal minimum temperature August
September 1991-2020 normal September average temperature 1991-2020 normal September maximum temperature 1991-2020 normal September minimum temperature 1981-2010 normal September average temperature difference 1981-2010 normal September maximum temperature difference 1981-2010 normal September minimum temperature difference 1981-2010 normal average temperature September 1981-2010 normal maximum temperature September 1981-2010 normal minimum temperature September
October 1991-2020 normal October average temperature 1991-2020 normal October maximum temperature 1991-2020 normal October minimum temperature 1981-2010 normal October average temperature difference 1981-2010 normal October maximum temperature difference 1981-2010 normal October minimum temperature difference 1981-2010 normal average temperature October 1981-2010 normal maximum temperature October 1981-2010 normal minimum temperature October
November 1991-2020 normal November average temperature 1991-2020 normal November maximum temperature 1991-2020 normal November minimum temperature 1981-2010 normal November average temperature difference 1981-2010 normal November maximum temperature difference 1981-2010 normal November minimum temperature difference 1981-2010 normal average temperature November 1981-2010 normal maximum temperature November 1981-2010 normal minimum temperature November
December 1991-2020 normal December average temperature 1991-2020 normal Decembe rmaximum temperature 1991-2020 normal December minimum temperature 1981-2010 normal December average temperature difference 1981-2010 normal December maximum temperature difference 1981-2010 normal December minimum temperature difference 1981-2010 normal average temperature December 1981-2010 normal maximum temperature December 1981-2010 normal minimum temperature December

 

 

PRECIPITATION

ANNUAL
  Difference Between Old and New  
1991-2020 Percentage Change Value Difference 1981-2010
1991-2020 normal annual precipitation 1981-2010 normal annual precipitation percentage change 1981-2010 normal annual precipitation amount change 1981-2010 normal annual precipitation

 

SEASONAL
    Difference Between Old and New  
  1991-2020 Percentage Change Value Difference 1981-2010
Spring 1991-2020 normal spring precipitation 1981-2010 normal spring precipitation percentage difference 1981-2010 normal spring precipitation value difference 1981-2010 normal spring precipitation
Summer 1991-2020 normal summer precipitation 1981-2010 normal summer precipitation percentage difference 1981-2010 normal summer precipitation value difference 1981-2010 normal summer precipitation
Autumn 1991-2020 normal autumn precipitation 1981-2010 normal autumn precipitation percentage diffrence 1981-2010 normal autumn precipitation value diffrenc 1981-2010 normal autumn precipitation
Winter 1991-2020 normal winter precipitation 1981-2010 normal winter precipitation percentage diffrence 1981-2010 normal winter precipitation percentage diffrence 1981-2010 normal winter precipitation

 

MONTHLY
    Difference Between Old and New  
  1991-2020 Percentage Change Value Difference 1981-2010
January 1991-2020 normal January precipitation 1981-2010 normal January precipitation percentage change 1981-2010 normal January precipitation value difference 1981-2010 normal January precipitation
February 1991-2020 normal February precipitation 1981-2010 normal February precipitation percentage change 1981-2010 normal February precipitation value difference 1981-2010 normal February precipitation
March 1991-2020 normal March precipitation 1981-2010 normal March precipitation percentage change 1981-2010 normal March precipitation value differenc 1981-2010 normal March precipitation
April 1991-2020 normal April precipitation 1981-2010 normal April precipitation percentage difference 1981-2010 normal April precipitation value difference 1981-2010 normal April precipitation
May 1991-2020 normal May precipitation 1981-2010 normal May precipitation percentage difference 1981-2010 normal May precipitation value difference 1981-2010 normal May precipitation
June 1991-2020 normal June precipitation 1981-2010 normal June precipitation difference 1981-2010 normal June precipitation value difference 1981-2010 normal June precipitation
July 1991-2020 normal July precipitation 1981-2010 normal July precipitation percentage difference 1981-2010 normal July precipitation value difference 1981-2010 normal July precipitation
August 1991-2020 normal August precipitation 1981-2010 normal August precipitation percentage difference 1981-2010 normal August precipitation value difference 1981-2010 normal August precipitation
September 1991-2020 normal September precipitation 1981-2010 normal September precipitation percentage difference 1981-2010 normal September precipitation value difference 1981-2010 normal September precipitation
October 1991-2020 normal October precipitation 1981-2010 normal October precipitation percentage differenc 1981-2010 normal October precipitation value difference 1981-2010 normal October precipitation
November 1991-2020 normal November precipitation 1981-2010 normal November precipitation percentage difference 1981-2010 normal November precipitation value difference 1981-2010 normal November precipitation
December 1991-2020 normal December precipitation 1981-2010 normal December precipitation percentage difference 1981-2010 normal December precipitation value difference 1981-2010 normal December precipitation

 

DEW POINT

The following maps are from the PRISM Climate Group at Oregon State University 

January February March April
Normal January dew point Normal February dew point Normal March dew point Normal April dew point
       
May June July August
Normal May dew point Normal June dew point Normal July dew point Normal August dew point
       
September October November December
Normal September dew point Normal October dew point Normal November dew point Normal December dew point